Not a diamond (appears to be weathered glass or industrial slag with a circular impact fracture/conchoidal fracture pattern)

Not a diamond (appears to be weathered glass or industrial slag with a circular impact fracture/conchoidal fracture pattern) · Irregular raw shard

Raw / Uncut fracture surface Cut

Not a diamond (appears to be weathered glass or industrial slag with a circular impact fracture/conchoidal fracture pattern) - Irregular raw shard

Carat

Not applicable

Color

Light green tinted material

Clarity

Included / heavily flawed non-gem material

Shape

Irregular raw shard

Overall Assessment

This object is definitively not a diamond. It is a piece of weathered greenish glass showing classic conchoidal fracture patterns and an impact point. It holds no gemological or monetary value.

Cut Quality

Raw / Uncut fracture surface

Brilliance

Poor / Dull vitreous luster

Fire

None

Scintillation

None

Proportions

Not applicable

Symmetry

None (irregular shard)

Polish

Unpolished natural weathered surface

Fluorescence

Unknown

Inclusions

Bubbles, debris, and internal stress fractures typical of glass

Blemishes

Surface pitting, weather patina, and chipping

Origin

Man-made glass or industrial byproduct

Treatment Detection

None applicable

Estimated Value

No monetary value as a gemstone

Certification Estimate

Not certifiable as a gemstone by major labs (GIA, AGS, IGI)

Investment Potential

None

Similar Diamonds

None

Setting Suggestions

Not suitable for jewelry settings

Care & Maintenance

Handle with care to avoid cuts from sharp glass edges

Interesting Facts

The image shows a distinct conchoidal fracture with an impact point (often called a Hertzian cone crack), which is characteristic of brittle materials like glass breaking under impact.

Identified on 8/26/2026
Not a diamond (appears to be weathered glass or industrial slag with a circular impact fracture/conchoidal fracture pattern) Irregular raw shard | Diamond Identifier